I need help please.just starting to get into the need to reload. I am buying a Lee PrecisionTurret loading press kit. I am looking for a good powder to use as well as primers for .9mm and .45ACP. My question is this..what is the differance between large pistol primers and small pistol primers? What do I use for .9mm and .45ACCP? Please help as I wish to order some. Also, what is a good bullet supplier for FmJ ball ammo and fmj hollowpoint? Thanks!!